Spraying-machine.



J. G. MASTIN.

SPRAYING MACHINE.

APPLICATION FILED JAN. 26, 1909.

Patented June 14,1910.

p sans JAMES Gs MASTIN, OF CHICAGO, ILLINOIS.

. manna-Macrame.

, Specification. of Iiet'ters Patent. P t t d June 14, 1910, Applicationfiled January 26,- 190B. Serial- No. 474,302.

To all whom it may concern:

Be itknownthat I, JAMES G. MASTIN,

a citizen of the United States, residing atthe object of my invention isto produce a machine of this character which is particularly adapted forspraying solutions of varying density, such as insecticides,disinfectants, whitewash, cold waterpaints and the like, and which isself-contained, simple in construction, being composed of few parts andnot likely to get out of order.

With these and other objects in view my invention consists in certainconstructions, combinations and arrangements of parts, the preferredform of which will be first described in connection with theaccompanying drawings, and then the invention articularly pointed out intheappended claims.

'Referrin to the drawings wherein the same part 1s designated by thesame reference numeral wherever it occurs, Figure 1 is a longitudinalsectional view of a spraying machine embodying my invention; F ig. 2 isa perspective view of the cover plate and its attached parts removedfrom the tank; Fig. 3 is an enlarged sectional ,view of the lower end ofthe pump cylinder and its connected parts. 1

1 designates the container casing having an opening 2 in its upper endin which is secured the cover plate or cap 3, which carries all themechanism of my invention. In the construction shown I have illustratedasa means for securing the cover plate over the openin in the containerthat shown in my Patent 0. 890,154, anted June 9, 1908, the sameconsisting o a ring l, secured around the opening 2, and the cover 3being provided with the locking levers 5, which engage the edge of thering and force the cover onto the ring. I

6 is a rubber gasket inserted between the cover plate and the ring tomake an airtight joint.

The pump barrel 7 extends through an opening formed in the cover plateand is upper end of the delivery preferably closed. at its upper: end bythecap 8, perforated at 9, through. which perforation. looselyextendsthe piston rod 10 provided with the operating handle 11 at itsper end-- The lower end; of" the: rod- 10 carries a plunger 12.preferably madeof leather and secured between apair of washers 1.3 heldonto the lower end of the plunger by means of the nut 14-1 pressing thewashers against the shoulder 15 formed by reducing the lower end of therod The lower end of the pump barrel 'Z is closed by a cap piece 16 intothe upper edge of which the pump barrel is secured by brazing or othersuitable manner, the cap piece be ing formed on one side thereof withthe lug 17, in which the fluid delivery pipe 18 is secured, the deliverypipe at its up .per end passing through the cover plate 2, and at theupper end of the delivery pipe is secured the hose 19, and to the outerend of the hose I provide a nozzle 20 of any desired form. It is obviousthat if desired the nozzle might be secured directly to the pipe. Thecap iece 16 is formed on one side with an enlargement 21 having achamber 22 formed in the upper end thereof, which is connected with thelower end of the interior of the cap piece by the p'assa e lower portionof the pump barrel is connected to the chamber 22. Preferably the bottomof the chamber 22 is formed conical, as shown at 24, with the passageway 23 extending through the apex of this conical bottom, aiid 25 is aball which loosely fits the chamber 22 and is a check valve for closingthe end of the passage way 23.

26 is a weight which may. be placed on the ball to insure its seatin theweight being shown as having an e ongated-tongue 27 extending upwardly,and an enlarged base portion 28 having its bottom formed with a conicalface 29 which rests upon the top of the ball.

30 is a U-shaped pipe one arm of which is secured in the upper end ofthe chamber 22 by being brazed or otherwise secured therein, the pipeextending upwardly, so that its turn is preferably 1n contact with theunder side of the cover plate 2 and-secured to the cover plate at 31 bybeing brazed or soldered thereto. The other arm of the pipe preferablyextends down below way 23, whereby the a the pumpbarrel, so that itslower end, when the parts are in position, is close to the bottom of thetank, as clearly shown in Fig. 1, this arm of the pipe bein secured tothe cap piece by passing throug the perforated lug 17, formed on theside of the enlargement of'the-ca piece. At 32 I preferably provide asma l vent opening which will prevent the liquid in the tank from risingin the descending .arm of the tube and pass ing over into the pump. Thisventis however so small that when the pump is operated only a very smallportion 0 the air can pass therethrough, the major portionof the airbeing delivered from the end of the pipe at the bottom of the tank.

When the arts are assembled in the manner describe and as shown with aliquid, such as a solution which it is desired to spray fillin the tank,the operation of the pump will orce air into the bottom of the tank,from which it will. ass up through the liquid, causing it to 'oil, andthus operate to stir up the liquid and prevent the material in solutionfrom settling to the bottom of the tank. The result is that a propermixture will be delivered from the nozzle and conse' sible in thedetails of construction and arrangement of parts without departing fromthe spirit of my invention, and I therefore do not intend to limitmyself to the specific form shown and described.

What I claim as new and desire to secure i by Letters Patent is- 1. In asprayingmachine, the combination with a container, of a cap for closingthe container, an air pump mounted upon the cap and extending into thecontainer, a U-shaped pipe connected at one end to the bottom of thepump and extending up along side the pump'and having its lower endextending substantially to the bottom of the container, the upperportion of said pipe being provided with a small opening, and a liquiddelivery pi e extending from within the container to the exterior.

2. In a spraying machine, the combination with a container, of a coverfor closing the container, an air pump mounted .upon the cover andextending nearly to the bottom of the container, said air pump beinprovided with a projection on one side 0 its lower portion, a valve forcontrolling the flow of air from the pump mounted in the projection, aU-shaped tube connected at one end to the upper end of said projectionand extending up along side the pump and having its lower end passingthrough the projection and extending substantially to the bottom of thecontainer, and a liquid delivery pipe extending from within thecontainer to the exterior.

In testimon whereof I ailix my signature in presence 0 two witnesses. I

JAMES G. MASTIN. Witnesses:

THOS. F. ItoBINsoN, G. L. Ronmson.

